import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Categories from '../components/goods/Categories.vue'
import Params from '../components/goods/Params.vue'
import List from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'


Vue.use(VueRouter)

const routes = [
  {
    path:'/',
    // 重定向
    redirect:'/login'
  },
    {
      path:'/login',
      component:Login
    },
    {
      path:'/home',
      component:Home,
      redirect:'/welcome',
      children:[
        {path:'/welcome',component: Welcome},
        {path:'/users',component:Users},
        {path:'/rights',component:Rights},
        {path:'/roles',component:Roles},
        {path:'/categories',component:Categories},
        {path:'/params',component:Params},
        {path:'/goods',component:List},
        {path:'/good/add',component:Add},
        {path:'/orders',component:Order},
        {path:'/reports',component:Report},
      ]
    },
    
 
  // {
  //   path: '/about',
  //   name: 'About',
  //   // route level code-splitting
  //   // this generates a separate chunk (about.[hash].js) for this route
  //   // which is lazy-loaded when the route is visited.
  //   component: () => import(/* webpackChunkName: "about" */ '../views/About.vue')
  // }
]

const router = new VueRouter({
  routes
})

// 挂载路由导航守卫
router.beforeEach((to,from,next)=>{
    //  to 将要访问的路径
    //  from 代表从哪个路径跳转而来
    //  next 是一个函数，表示放行
    //      next()  放行  next('/login')  强制跳转
    if(to.path === '/login') return next()
    // 获取token
    const tokenStr = window.sessionStorage.getItem('token')
    if(!tokenStr) return next('/login')
    // 如果是token继续往下走
    next()
})
export default router
